Oppositifolious character of maize is a new variation type, whose leaf and kernel are both oppositifolious, which is a high-yield breeding germplasm resource.
玉米的对生性状是一个新的变异类型，其叶片和果穗均为对生，是高产育种极其珍贵的种质资源。
It was supposed that proper root number, much branches and deep-root is a development direction of breeding for ideal type root system in rice.
提出控制根数量、适当增加分枝根数目和加深根分布是未来开展水稻根系育种、塑造水稻理想根型的基本方向。
These loci might be used as assistant markers for early selection in line breeding of ultra-fine wool sheep from Alpine type Chinese Merino.
部分位点可为中国美利奴高山型超细品系培育的早期选种提供辅助依据。
The high-yield and high-quality in erect panicle type Japonica line could be selected by anther culture or group selective breeding.
通过花培和组群筛选法均能较快地获得直穗型高产优质粳稻品系。
The utility model relates to a tray type chicken breeding program ruler, comprising the tray of a program ruler and the tray of a day-month ruler.
本实用新型涉及一种盘式雏鸡养殖程序尺，它由一个程序尺盘和一个日、月尺盘组成。
The physiological and biochemical characteristics of different type senescence wheat are studied so as to identify senescence and provide basis for wheat breeding against early senescence.
并研究不同衰老类型小麦发育后期的生理生化特性，以期为小麦早衰鉴定和抗早衰育种提供依据。
Upland rice is not only the most suitable rice type for upland and drought areas, but also the valuable resources for drought tolerance breeding in rice.
陆稻是山区及干旱地区最适宜种植的稻种类型，亦是水稻抗旱育种的宝贵资源。
Those NILs can be used to study the genetic expression of genes or effects of the relative characters, and also as superior. parents in plant type breeding.
它们既可用于研究相对性状的基因作用，又可作为株型育种的良好亲本。
The adaptability of hybrids type characteristic with the ecological condition in maize high yield developing has been discussed in this paper with the maize breeding practice.
结合育种实践论述了玉米高产开发中品种类型特性与生态条件的相互适应性。
The method is accurate, simple and convenient, and the discrimination of cold source is favorable to breeding cold type wheat variety with high and stable yield.
通过对小麦冷源的确认，可以充分发挥其在小麦品种选育中的作用，为更快、更多地选育出冷型小麦创造优越条件，以利于小麦高产、稳产。
Peking duck is the most excellent meat-type breed and plays the important role in meat-type duck breeding.
北京鸭是我国十分优秀的肉鸭品种，在世界肉鸭育种中占有举足轻重的地位。
For microbial strain with simple genetic background, outer space conditions can make microorganism change into a new type, which is valuable for space breeding research.
微生物是低等生物，遗传背景比较简单，一旦突变就会形成新的东西，这对航天育种研究有非常大的价值。
It is important to select number of heads per plant in big spike type breeding.
对大穗型单株穗数的选择也不应忽视。
In aspect of plant type traits, three way-cross combination behave positive predominance comparing CK, it is obvious that the breeding of three way-cross can change plant type.
在株型性状方面，三交种与对照相比，普遍表现为正优势，可见三交育种能改变水稻的株叶形态。
The paper introduces the breeding methods of the homozygous two-type line, temporary maintainer line and complete sterile line with a recessive epistasis nuclear male sterile.
对甘蓝型油菜隐性上位细胞核雄性不育纯合两型系、临保系和全不育系的转育方法进行了介绍。
The results showed that 77 Zhong 2882, derived from a cross of spring x winter type wheat, was a good wheat breeding germplasm with 1B/1R translocation.
结果表明，77中2882是一个丰产、多抗、早熟、优质，并合1B／1R易位的优良冬春杂交小麦种质。
Flag leaf shape is one of the most important target traits in rice ideal plant type breeding.
剑叶形态性状(剑叶长、剑叶宽和剑叶面积)是水稻理想株型育种的重要目标性状之一。
Dressing frequency, time and type of fertilizer, according to breeding methods and soil fertility determined.
追肥次数、时间和用肥种类，根据育苗方法和土壤肥力确定。
Dressing frequency, time and type of fertilizer, according to breeding methods and soil fertility determined.
追肥次数、时间和用肥种类，根据育苗方法和土壤肥力确定。
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